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i <br /> 9 <br /> Flowers: Small, delicate, and <br /> inconspicuous. They appear fleet- <br /> ingly just at the surface of the wa- <br /> ter in late summer and early fall. <br /> Reproduction: One reason that <br /> hydrilla is so invasive is because it <br /> can reproduce by fragmentation <br /> as well as from stolons, tubers <br /> ill' <br /> (pictured right), and turions. Turi- <br /> ons are produced in the leaf axils, <br /> while tubers (about the size of a pea) are produced <br /> at the ends of the rhizomes. <br /> Habitat: An intro- 9 � <br /> duced noxious plant <br /> that has become <br /> established in freshwa- <br /> ter areas throughout <br /> much of the south- <br /> eastern U.S. <br /> Similar Species: <br /> Hydrilla is similar in <br /> appearance to Egeria, <br /> but hydrilla has ser- f �y�r�lla <br /> rations along the leaf ! lydrilla vertcijlata <br /> margin, forms underground tubers, and feels coarse <br /> to the touch. Egeria has very small serrations along <br /> the leaf, requiring a hand lens to see them, and feels <br /> soft and smooth when drawn through the hand. <br /> Submersed <br />